window.addEvent('domready',function(){
	var notice_dirt = $('notice_dirt');
	var notice_blog = $('notice_blog');
	var notice_lab = $('notice_lab');
	var notice_canvas = $('notice_canvas');
	
	//notice_dirt.setStyle('opacity',0.5);
	//notice_blog.setStyle('opacity',0.5);
	notice_dirt.tween('opacity','0.5');
	notice_blog.tween('opacity','0.5');
	notice_lab.tween('opacity','0.5');
	notice_canvas.tween('opacity','0.5');

	notice_dirt.addEvent('mouseover',function(){
		notice_dirt.tween('opacity','1.0');
	});
	notice_dirt.addEvent('mouseout',function(){
		notice_dirt.tween('opacity','0.5');
	});
	
	notice_blog.addEvent('mouseover',function(){
		notice_blog.tween('opacity','1.0');
	});
	notice_blog.addEvent('mouseout',function(){
		notice_blog.tween('opacity','0.5');
	});
	
	notice_lab.addEvent('mouseover',function(){
		notice_lab.tween('opacity','1.0');
	});
	notice_lab.addEvent('mouseout',function(){
		notice_lab.tween('opacity','0.5');
	});
	
	notice_canvas.addEvent('mouseover',function(){
		notice_canvas.tween('opacity','1.0');
	});
	notice_canvas.addEvent('mouseout',function(){
		notice_canvas.tween('opacity','0.5');
	});	

});